GM GENUINE PARTS 12666010 Upper Crankshaft Bearing

( Brand: Gm Genuine Parts ), ( Part Type: Bearing Crankshaft ), ( Genuine Oem: Yes ), ( Oem Part Number: 12666010 ), ( Manufacturer Warranty: 1 Year ), ( Fitment Type: Direct Replacement ), ( Parts Included: Only Part Reference 34 On The Diagram Is Included )

Review GM GENUINE PARTS Crankshaft Upper Bearing

GM 12666010 Crankshaft Upper Bearing

The GM 12666010 Crankshaft Upper Bearing is an essential component of an internal combustion engine, specifically designed for General Motors applications. This bearing is engineered to provide a smooth and efficient rotational movement between the crankshaft and the engine block.

The crankshaft upper bearing is a part of the engine's bearing assembly, which includes several other bearings, such as the crankshaft lower bearing and the main bearings. These components work together to minimize friction and wear, ensuring the engine runs reliably and efficiently.

The GM 12666010 Crankshaft Upper Bearing is manufactured from high-quality materials, ensuring durability and longevity. The outer surface of the bearing is typically made of steel, while the inside is lined with a bearing material, such as brass or bronze. The bearing material provides a low-friction surface for the crankshaft to rotate against, reducing wear and helping to maintain engine performance.

The crankshaft upper bearing is designed to fit specifically in the engine's crankcase. It includes an outer diameter that matches the crankshaft's diameter, as well as an inner diameter that fits snugly against the engine block. The bearing also features a tapered or stepped design, allowing it to properly align with the crankshaft and engine block.

Additionally, the GM 12666010 Crankshaft Upper Bearing includes an oil seal or lip, which helps to prevent engine oil from leaking out of the crankcase. This seal is an essential part of the bearing assembly, as it ensures that the engine is properly lubricated, reducing wear and helping to maintain optimal performance.

When installing the GM 12666010 Crankshaft Upper Bearing, it is important to follow the manufacturer's instructions carefully. Proper installation ensures that the bearing is seated correctly, providing the necessary clearances and preventing any damage to the engine components.

In summary, the GM 12666010 Crankshaft Upper Bearing is a crucial component of an internal combustion engine, designed to provide a smooth and efficient rotational movement between the crankshaft and the engine block. Manufactured from high-quality materials and featuring an oil seal, this bearing ensures optimal engine performance and longevity.

Buying a GM 12666010 Crankshaft Upper Bearing: A Comprehensive Analysis

The GM 12666010 Crankshaft Upper Bearing is an essential component in the engine's crankshaft assembly. Replacing a worn-out or damaged crankshaft bearing can help improve engine performance and prevent potential damage to other engine parts. In this analysis, we will discuss both the advantages and disadvantages of buying this crankshaft upper bearing from GM.

1. Original Equipment: Purchasing a GM 12666010 crankshaft upper bearing ensures that you are getting a genuine OEM (Original Equipment Manufacturer) part. This part has been specifically designed and manufactured to meet the exacting standards of General Motors.

2. Reliability: GM parts are renowned for their durability and reliability. With a GM crankshaft upper bearing, you can be confident that you are getting a high-quality component that will perform optimally in your engine.

3. Warranty: GM offers a limited warranty on their parts, providing peace of mind to consumers. This coverage can help protect your investment and minimize the risk of unexpected repair costs.

1. Cost: GM parts, like the 12666010 crankshaft upper bearing, can be more expensive than aftermarket alternatives. This higher cost may deter some consumers from making the purchase.

2. Availability: Depending on the specific engine model and year, it may be challenging to find a GM dealership or parts supplier that carries this particular crankshaft upper bearing in stock. This could result in a longer wait time for the part.

The decision to buy a GM 12666010 crankshaft upper bearing ultimately depends on your priorities as a consumer. If you value the reliability and peace of mind that comes with using genuine OEM parts, and you have the budget for the higher cost, then purchasing this part from GM is an excellent choice. However, if cost is a significant concern and you are willing to accept the potential risks associated with aftermarket parts, then exploring alternative options may be a better fit for your needs.

If you prioritize the peace of mind that comes with using genuine OEM parts and have the budget for the higher cost, then we recommend purchasing the GM 12666010 crankshaft upper bearing from a trusted GM dealership or parts supplier. If cost is a concern, we suggest researching reputable aftermarket part suppliers and comparing their offerings to ensure you are getting a high-quality alternative at a more affordable price. Always make sure to read reviews and consult with a mechanic or engine expert before making a final decision.

Details:

Found a Better Price. Changed My Mind. Just Didn't Like it.

part #: 12666010 prices

• $27.53-$27.76

specifications engibearing:

• brand: Gm Genuine Parts
• part type: Bearing Crankshaft
• genuine oem: Yes
• oem part number: 12666010
• manufacturer warranty: 1 Year
• fitment type: Direct Replacement
• parts included: Only Part Reference 34 On The Diagram Is Included

seller engibearing:

• rating: 99.2%
• city: Garland, Texas
• # reviews: 32127

general engibearing:

• condition: New
• Car Truck Parts Accessories > Engines Engine Parts > Engine Bearings

shipping engibearing:

• class: Standard
• type: Fixed
• transit: 9-15 Days
• service: FedEx Ground / FedEx Home Delivery
• cost: $0.00
• carrier: FedEx

returns engibearing:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

offer engibearing:

• started: May 4, 2026
• options: Ship-to-home
• quantity: 4
• sold: 0
• availability: In Stock

payments engibearing:

• wallet: Google-pay
• credit card: Visa
• other

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